The clustering methods, including the Two-Stage Density Linkage, available in proc cluster are described here   http://support.sas.com/documentation/cdl/en/statug/63962/HTML/default/viewer.htm#statug_cluster_sect012.htm   It is unlikely however that you will get exactly the same results from two independent implementations. ... View more

I'll support @ballardw's suggestion.  Here is an example from a survey, that uses PROC FREQ:   http://www.stat.purdue.edu/~tqin/system101/method/method_mcnemar_sas.htm   That isn't to say that there aren't complex survey methods for McNemar tests out there (google is your friend for this)--it's just that from the info given, PROC FREQ seems adequate.   Steve Denham ... View more